CN105885970B - 车用燃料及其制备方法 - Google Patents
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Abstract
本申请提供一种车用燃料及其制备方法。车用燃料包括:柴油5‑10份、聚甲氧基二甲醚30‑80份、醇类助燃剂1‑5份、缓蚀剂1‑5份、抗爆剂1‑10份、催化助燃剂1‑5份、稳定剂1‑10份、抗氧化剂1‑5份、分散剂0.1‑5份、溶剂油5‑10份。制备方法包括:将柴油、聚甲氧基二甲醚、溶剂油在常温下充分搅拌混合得到第一混合物;搅拌状态下向第一混合物加入醇类助燃剂、缓蚀剂和催化助燃剂得第二混合物;在搅拌及恒温35‑60℃条件下向第二混合物依次加入稳定剂、抗爆剂、抗氧化剂和分散剂,相邻物质加入时间间隔为1‑2h;加完后搅拌1‑2h保温静置3‑5h。本申请提供的车用燃料稳定性好,聚甲氧基二甲醚的利用率高。
Description
技术领域
本申请涉及能源领域,尤其是涉及一种车用燃料及其制备方法。
背景技术
中国是能源消耗大国,然而中国也是油气资源相对贫乏的国家,这种矛盾给中国的能源安全带来极大的挑战和隐患。一方面,调整能源结构,另一方面,寻找可替代能源成为一条重要的缓解能源压力的道路。
聚甲氧基二甲醚(DMMn,n一般为2-8)主要原料为甲醇,其原料来源广泛、价格低廉,在我国十分容易获得;此外,聚甲氧基二甲醚作为柴油添加物,可以有效的改善柴油在发动机内的燃烧质量,提高热效率,降低污染物排放,被认为是极具应用前景的柴油添加剂。
国内外对于如何使用聚甲氧基二甲醚获得可实际使用的燃料产品进行了诸多研究,主要的方向是将聚甲氧基二甲醚作为核心添加成分,与其他添加剂一起制备成为稳定、燃烧率高、污染物排放低的产品。
申请人主要从事聚甲氧基二甲醚的生产和相关产品研究,在开发聚甲氧基二甲醚产品时发现,现有的聚甲氧基二甲醚燃料产品存在着稳定性差、容易出现沉淀物,继而使得合成燃料产品热效率低、残渣多、影响发动机使用寿命的问题。
鉴于此,特提出本申请。
发明内容
本申请提供了一种车用燃料及其制备方法,以解决上述问题。
本申请是这样实现的:
本申请提供一种车用燃料,以重量份计,包括:柴油5-10份、聚甲氧基二甲醚30-80份、醇类助燃剂1-5份、缓蚀剂1-5份、抗爆剂1-10份、催化助燃剂1-5份、稳定剂1-10份、抗氧化剂1-5份、分散剂0.1-5份、溶剂油5-10份。
其中,醇类助燃剂除了提高燃烧效率之外,还与稳定剂、分散剂和溶剂油一起增加车用燃料的稳定性。需要说明的是,各个牌号的溶剂油及其混合物均在可选范围内,优选地是70、90#溶剂油。特别想要强调的是,稳定剂、分散剂和溶剂油三者对于保持车用燃料的稳定性缺一不可。
优选地,所述醇类助燃剂选自甲醇、乙醇、苯甲醇、叔丁醇和异丁醇组成的组。
使用上述添加物作为醇类助燃剂,在提高燃烧效率的同时,可以有效的减少燃烧残留物。
进一步优选地,所述醇类助燃剂按重量百分比计,包括甲醇20%、乙醇30%、苯甲醇10%、叔丁醇15%和异丁醇25%。
按照上述比例制备醇类助燃剂,可以将燃烧效率提高到最高而残留物最少。
优选地,所述缓蚀剂选自磷酸二辛脂、乙酸乙酯、亚磷酸二苯酯、二乙醇胺和三乙醇胺组成的组。
选择上述化合物作为缓蚀剂,除了能够最大程度的降低燃料对于发动机的损伤外,还能够有效的保证燃烧率和稳定性。
更加优选地,所述抗爆剂选自甲基叔丁基醚、四乙基铅、二茂铁和甲基环戊二烯三羰基锰组成的组。
可选地,所述催化助燃剂选自硝酸异辛酯、草酸正丁酯、碳酸二甲酯和脂肪酸甲酯组成的组。
催化助燃剂与醇类助燃剂一起,可以提高车用燃料的燃烧效率;同时,选用上述化合物并不会导致产品的稳定性变差。
优选地,所述稳定剂按重量百分比计,包括丙二酸二乙酯10-30%、C9树脂溶液1-5%、N,N-二甲基苯胺30-40%和醋酸异丁酯30-50%。
稳定剂的选择,除了考虑其本身对于产品的稳定性的影响外,还要考虑其与其他成分之间的相互配合。选择上述物质和比例作为稳定剂,尤其是C9树脂溶液的使用,极大的改善了整个产品的稳定性。
进一步优选地,以重量份计,所述C9树脂溶液是溶质为C9石油树脂、溶剂为环己烷或乙基环己烷、质量浓度为10-20%的溶液。
使用C9石油树脂作为溶质、环己烷或乙基环己烷作为溶剂制得C9树脂溶液,保证了C9石油树脂和其他成分之间的相容性。
优选地,以重量份计,所述分散剂为烷基磺酸盐,所述抗氧化剂选自2,6-二叔丁基对甲酚、对羟基二苯胺、N,N-二异丙基对苯二胺、N,N′-二仲丁基对苯二胺组成的组。
本申请还提供一种所述车用燃料的制备方法,所述方法包括以下步骤:
a.将所述柴油、所述聚甲氧基二甲醚、所述溶剂油在常温下按照各自的重量份,充分搅拌混合得到第一混合物;
b.在搅拌状态下,向所述第一混合物中加入所述醇类助燃剂、所述缓蚀剂和所述催化助燃剂,得到第二混合物;
c.在搅拌及恒温35-60℃条件下,向所述第二混合物中依次加入所述稳定剂、所述抗爆剂、所述抗氧化剂和所述分散剂,相邻两个物质加入的时间间隔为1-2小时;加入完毕后继续搅拌1-2小时,然后保温静置3-5小时,得到所述车用燃料。
采用有序的方法依次加入各个成分,并采用搅拌、保温的方法,进一步保证产品的稳定性。
通过本申请提供的车用燃料及其制备方法,能够获得稳定性好的产品,进而保证产品的燃烧效率、减少燃烧残留物。
具体实施方式
下面结合实施例对本申请作进一步的详细说明。可以理解的是,此处所描述的具体实施例仅仅用于解释本申请,而非对本申请的限定。
本申请提供一种车用燃料和制备方法,通过对各个原料成分的选择以及制备方法的研究,获得一种稳定性高、燃烧效率高、燃烧残渣少、污染物排放量低的车用燃料。
实施例1
一种车用燃料,包括:柴油5kg、聚甲氧基二甲醚80kg、甲醇1kg、磷酸二辛脂5kg、甲基叔丁基醚1kg、硝酸异辛酯5kg、稳定剂1kg、2,6-二叔丁基对甲酚5kg、十二烷基磺酸钠0.1kg、70#溶剂油10kg。
其中,所述稳定剂包括丙二酸二乙酯0.3kg、C9树脂溶液0.01kg、N,N-二甲基苯胺0.39kg和醋酸异丁酯0.3kg,所述C9树脂溶液包含C9石油树脂2g、环己烷8g;将上述物质混合搅拌均匀即可得到稳定剂。
上述车用燃料的制备方法如下:将柴油、聚甲氧基二甲醚、70#溶剂油在常温下按照各自的重量份,充分搅拌混合得到第一混合物;在搅拌状态下,向第一混合物中加入甲醇、磷酸二辛脂和硝酸异辛酯,得到第二混合物;在搅拌及恒温60℃条件下,向第二混合物中依次加入稳定剂、甲基叔丁基醚、2,6-二叔丁基对甲酚和十二烷基磺酸钠,相邻两个物质加入的时间间隔为2小时;加入完毕后继续搅拌2小时,然后保温静置5小时,得到车用燃料。
实施例2
一种车用燃料,包括:柴油10kg、聚甲氧基二甲醚30kg、乙醇5kg、乙酸乙酯1kg、四乙基铅10kg、草酸正丁酯1kg、稳定剂10kg、对羟基二苯胺1kg、十六烷基磺酸钠5kg、90#溶剂油5kg。其中,每千克所述稳定剂中包括丙二酸二乙酯0.1kg、C9树脂溶液0.05kg、N,N-二甲基苯胺0.4kg和醋酸异丁酯0.45kg,所述C9树脂溶液包含C9石油树脂5g、乙基环己烷45g。
上述车用燃料的制备方法如下:将柴油、聚甲氧基二甲醚、90#溶剂油在常温下按照各自的重量份,充分搅拌混合得到第一混合物;在搅拌状态下,向第一混合物中加入乙醇、乙酸乙酯和草酸正丁酯,得到第二混合物;在搅拌及恒温35℃条件下,向第二混合物中依次加入稳定剂、四乙基铅、对羟基二苯胺和十六烷基磺酸钠,相邻两个物质加入的时间间隔为1小时;加入完毕后继续搅拌1小时,然后保温静置3小时,得到车用燃料。
实施例3
一种车用燃料,包括:柴油8kg、聚甲氧基二甲醚50kg、苯甲醇3kg、二乙醇胺2kg、三乙醇胺2kg、二茂铁5kg、碳酸二甲酯3kg、稳定剂3kg、N,N-二异丙基对苯二胺3kg、正十四烷基磺酸钠1kg、6#溶剂油8kg。其中,每千克所述稳定剂中包括丙二酸二乙酯0.17kg、C9树脂溶液0.03kg、N,N-二甲基苯胺0.3kg和醋酸异丁酯0.5kg,所述C9树脂溶液包含C9石油树脂4.5g、环己烷25.5g。
上述车用燃料的制备方法如下:将柴油、聚甲氧基二甲醚、溶剂油在常温下按照各自的重量份,充分搅拌混合得到第一混合物;在搅拌状态下,向第一混合物中加入醇类助燃剂、缓蚀剂和催化助燃剂,得到第二混合物;在搅拌及恒温50℃条件下,向第二混合物中依次加入稳定剂、抗爆剂、抗氧化剂和分散剂,相邻两个物质加入的时间间隔为1.5小时;加入完毕后继续搅拌1.5小时,然后保温静置4小时,得到车用燃料。
实施例4
一种车用燃料,包括:柴油7kg、聚甲氧基二甲醚70kg、叔丁醇2kg、异丁醇2kg、磷酸二辛脂1kg、亚磷酸二苯酯1kg、甲基环戊二烯三羰基锰3kg、脂肪酸甲酯2kg、稳定剂8kg、N,N′-二仲丁基对苯二胺2kg、十二烷基磺酸钠2kg、120#溶剂油9kg。其中,每千克所述稳定剂中包括丙二酸二乙酯0.2kg、C9树脂溶液0.04kg、N,N-二甲基苯胺0.35kg和醋酸异丁酯0.41kg,所述C9树脂溶液包含C9石油树脂4g、环己烷36g。
制备方法同实施例3所示。
实施例5
一种车用燃料,包括:柴油6kg、聚甲氧基二甲醚60kg、甲醇2kg、乙醇1kg、苯甲醇1kg、磷酸二辛脂1kg、乙酸乙酯1kg、亚磷酸二苯酯1kg、甲基叔丁基醚1kg、四乙基铅1kg、硝酸异辛酯2kg、草酸正丁酯2kg、稳定剂5kg、对羟基二苯胺2kg、N,N-二异丙基对苯二胺2kg、十二烷基磺酸钠0.5kg、70#溶剂油10kg。其中,每千克所述稳定剂中包括丙二酸二乙酯0.25kg、C9树脂溶液0.05kg、N,N-二甲基苯胺0.36kg和醋酸异丁酯0.34kg,所述C9树脂溶液包含C9石油树脂10g、环己烷40g。
上述车用燃料的制备方法如下:将柴油、聚甲氧基二甲醚、溶剂油在常温下按照各自的重量份,充分搅拌混合得到第一混合物;在搅拌状态下,向第一混合物中加入醇类助燃剂、缓蚀剂和催化助燃剂,得到第二混合物;在搅拌及恒温40℃条件下,向第二混合物中依次加入稳定剂、抗爆剂、抗氧化剂和分散剂,相邻两个物质加入的时间间隔为1小时;加入完毕后继续搅拌2小时,然后保温静置5小时,得到车用燃料。
实施例6
一种车用燃料,包括:柴油5kg、聚甲氧基二甲醚80kg、甲醇1kg、乙醇1.5kg、苯甲醇0.5kg、叔丁醇0.75kg和异丁醇1.25kg、磷酸二辛脂5kg、甲基叔丁基醚2kg、四乙基铅1kg、二茂铁0.5kg和甲基环戊二烯三羰基锰0.5kg、硝酸异辛酯1kg、草酸正丁酯1kg、碳酸二甲酯1kg和脂肪酸甲酯1kg、稳定剂9kg、2,6-二叔丁基对甲酚5kg、十二烷基磺酸钠0.1kg、70#溶剂油10kg。其中,每千克所述稳定剂中包括丙二酸二乙酯0.3kg、C9树脂溶液0.01kg、N,N-二甲基苯胺0.39kg和醋酸异丁酯0.3kg,所述C9树脂溶液包含C9石油树脂2g、环己烷8g。
制备方法同实施例5所示。
实施例7
一种车用燃料,包括:柴油5kg、聚甲氧基二甲醚80kg、甲醇1kg、磷酸二辛脂1kg、乙酸乙酯1kg、亚磷酸二苯酯1kg、二乙醇胺1kg和三乙醇胺1kg、甲基叔丁基醚1kg、硝酸异辛酯5kg、稳定剂1kg、2,6-二叔丁基对甲酚1kg、对羟基二苯胺1kg、N,N-二异丙基对苯二胺1kg、N,N′-二仲丁基对苯二胺1kg、十二烷基磺酸钠0.1kg、120#溶剂油10kg。其中,每千克所述稳定剂中包括丙二酸二乙酯0.3kg、C9树脂溶液0.01kg、N,N-二甲基苯胺0.39kg和醋酸异丁酯0.3kg,所述C9树脂溶液包含C9石油树脂2g、环己烷8g。
制备方法同实施例5所示。
比较例1
将实施例1中的稳定剂剔除,其他组分相同,制备方法相同得到比较车用燃料1,静置观察。
比较例2
将实施例2中的分散剂剔除,其他组分相同,制备方法相同得到比较车用燃料2,静置观察。
比较例3
将实施例3中的稳定剂和分散剂剔除,其他组分相同,制备方法相同得到比较车用燃料3,静置观察。
比较例4
将实施例4中的醇类助燃剂剔除,其他组分相同,制备方法相同得到比较车用燃料4,静置观察。
比较例5
将实施例5中的稳定剂、分散剂和溶剂油剔除,其他组分相同,制备方法相同得到比较车用燃料5,静置观察。
比较例6
将实施例6中的各个组分随意混合,制备得到比较车用燃料6,静置观察。
比较例7
将实施例7中的各个组分按照实施例7的添加顺序进行混合,
但不进行保温,也不设置添加的时间间隔,制备得到比较车用燃料7,静置观察。
分别按照实施例1-7、比较例1-7制得车用燃料,在相同条件下保存,静置30天、60天、90天、120天、150天、180天时的状态,观察其是否有沉淀物,其结果如下表1所示:
表1观察结果
由上表可知,本申请提供的车用燃料,其稳定性很好,能够长时间储存。
此外,分别对实施例1-7、比较例1-7制得的车用燃料用同一台柴油发动机进行50次燃烧测试发现,比较例所制得的燃料其燃烧残渣比对应的实施例的燃烧残渣平均要多20%-30%。由此可以说明,本申请在提高产品稳定性的基础上,使得合成燃料产品燃烧残渣减少,进而提高其燃烧效率,减少复合燃料对于发动机使用寿命的影响。
需要特别说明的是,柴油5-10份、聚甲氧基二甲醚30-80份进行混合就可以获得相对较好的燃料,本申请增加的各种添加剂主要是为了获得更好的性能,使其在实际应用中能够更好的提高效率、保护发动机、减少污染物排放。
以上所述仅为本申请的优选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
Claims (7)
1.一种车用燃料,其特征在于,以重量份计,包括:柴油5-10份、聚甲氧基二甲醚30-80份、醇类助燃剂1-5份、缓蚀剂1-5份、抗爆剂1-10份、催化助燃剂1-5份、稳定剂1-10份、抗氧化剂1-5份、分散剂0.1-5份、溶剂油5-10份;
其中所述稳定剂按重量百分比计,包括丙二酸二乙酯10-30%、C9树脂溶液1-5%、N,N-二甲基苯胺30-40%和醋酸异丁酯30-50%;
所述C9树脂溶液是溶质为C9石油树脂、溶剂为环己烷或乙基环己烷、质量浓度为10-20%的溶液;并且
所述抗爆剂选自二茂铁和甲基环戊二烯三羰基锰组成的组。
2.根据权利要求1所述的车用燃料,其特征在于,所述醇类助燃剂选自甲醇、乙醇、苯甲醇、叔丁醇和异丁醇组成的组。
3.根据权利要求2所述的车用燃料,其特征在于,所述醇类助燃剂按重量百分比计,包括甲醇20%、乙醇30%、苯甲醇10%、叔丁醇15%和异丁醇25%。
4.根据权利要求1所述的车用燃料,其特征在于,所述缓蚀剂选自磷酸二辛脂、乙酸乙酯、亚磷酸二苯酯、二乙醇胺和三乙醇胺组成的组。
5.根据权利要求4所述的车用燃料,其特征在于,所述催化助燃剂选自硝酸异辛酯、草酸正丁酯、碳酸二甲酯和脂肪酸甲酯组成的组。
6.根据权利要求1所述的车用燃料,其特征在于,以重量份计,所述分散剂为烷基磺酸盐,所述抗氧化剂选自2,6-二叔丁基对甲酚、对羟基二苯胺、N,N-二异丙基对苯二胺、N,N′-二仲丁基对苯二胺组成的组。
7.权利要求1-6任一项所述的车用燃料的制备方法,其特征在于,所述方法包括以下步骤:
a.将所述柴油、所述聚甲氧基二甲醚、所述溶剂油在常温下按照各自的重量份,充分搅拌混合得到第一混合物;
b.在搅拌状态下,向所述第一混合物中加入所述醇类助燃剂、所述缓蚀剂和所述催化助燃剂,得到第二混合物;
c.在搅拌及恒温35-60℃条件下,向所述第二混合物中依次加入所述稳定剂、所述抗爆剂、所述抗氧化剂和所述分散剂,相邻两个物质加入的时间间隔为1-2小时;加入完毕后继续搅拌1-2小时,然后保温静置3-5小时,得到所述车用燃料。
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